Gneezy, Uri; Rey-Biel, Pedro - In: Journal of the European Economic Association 12 (2014) 1, pp. 62-72
We report evidence from a large field experiment that compares the effectiveness of contingent and noncontingent incentives in eliciting costly effort for a large range of payment levels. The company with which we worked sent 7,250 letters asking customers to complete a survey. Some letters...
